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Progress in Earth and Planetary Science
Fig. 16 | Progress in Earth and Planetary Science

Fig. 16

From: Paleoceanography and dinoflagellate cyst stratigraphy across the Lower–Middle Pleistocene Subseries (Calabrian–Chibanian Stage) boundary at the Chiba composite section, Japan

Fig. 16

Marine palynology and palynofacies of the Chiba and Yoro-Tabuchi sections plotted against the age model of Suganuma et al. (2018, in press). MIS and substage boundary positions are from Haneda et al. (2020b). The position of Byk-E tephra bed is shown. The biozonation (biozones Df1–8) is from the present study, with total heterotrophs (brown) versus total phototrophs expressing the overall dinoflagellate cyst assemblage compositions. Dominant palynofacies component (brown line = terrestrial represented mostly by woody and cuticular plant tissues, blue line = marine represented by amorphous organic matter [AOM]) is given for each sample based on qualitative visual estimate. In a few samples, marine and terrestrial components co-dominate. Concentrations of dinoflagellate cysts (× 10,000) and benthic microforaminiferal linings (× 100) are per gram dry weight of sediment

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